Seiko Cal. 5689 - 256

The 5689-256 is a sought-after Spring Drive piece from Seiko's golden era. It features a Cream dial protected by a Hardlex crystal and offers 190m of water resistance. [seikata-wm-8010485855b7]

Also known as: Sportsmatic, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

35mm

Case Thickness

9.7mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

190m

Dial Color

Cream

Jewels

20j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1978

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